Also known as Cactus Park, CO-57

Where: Mesa County, Colorado (38.9° N, 108.5° W: paleocoordinates 34.8° N, 55.2° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Brushy Basin Member (Morrison Formation), Kimmeridgian to Kimmeridgian (155.7 - 145.5 Ma)

• middle to upper part of member

• bed-level stratigraphic resolution

Environment/lithology: "channel"; lithified sandstone

Size class: macrofossils

Preservation: mold/impression

Collection methods: quarrying, surface (float), surface (in situ), mechanical,

Primary reference: J. I. Kirkland, K. Carpenter, A. P. Hunt and R. D. Scheetz. 1998. Ankylosaur (Dinosauria) specimens from the Upper Jurassic Morrison Formation. Modern Geology 23:145-177 [M. Carrano/M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 48124: authorized by Matt Carrano, entered by Matt Carrano on 14.03.2005